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A stump left after an amputation, often half of a finger.
Originated by some random teenagers with nothing better to do.
*holds up hand* OMG! look at my yib!
by w00tster January 02, 2005
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Acronym for "Yeah, I bet." Used to shut down a person you don't care for and don't want to speak with.
Bro: Dude man bro, I got so fuckin' tanked last night!

Guy: "YIB."
by AltBr0 April 11, 2011
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Acronym for "Yeah, I'm being sarcastic."
Dad: I wish I was as cool as you when I was in High School.

Kid: Really?

Dad: YIBS
by DCPete January 05, 2010
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Short for Young Israel Booster - a particular sort of yuppie, often from Eastern USA or Tel Aviv who spends time on the Internet correcting people's wrongful impressions of Israel.
The Yibs flooded the YouTube video's comments pages with assertions that only Israel puts so much effort into reducing civilian casualties through precision strikes and anyone who says otherwise just doesn't understand what it's like to live in constantly threatened Israel.
by Beagle17 January 10, 2009
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YIB stands for 'Youth In Black'. a gang of 'chavs' dressed in black balaclavas, hoodies and/or tracksuits.
1. he must belong to YIB
by seeingisbelieving February 11, 2012
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"Yours in Brotherhood"

A way for fraternity brothers to close correspondence with another brother, most often in email.

Possibly an imitation of Scouting's common use of "YiS" for "Yours in Scouting".
Dear John,

We're moving the chapter meeting to 4p this Friday.

YiB,

Sam
by term3 October 25, 2010
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